Hah! Let me apologize in advance for the fact that this will be entirely unhelpful, but I have a similar question. Where you ask how to make make me scroll, I ask why you make me scroll.
As a matter of circumstance, my design career has only included a relatively tiny amount of design for web or on-screen, but back when I started (before the comet wiped out all my bird-lizard contemporaries), (I thought) the prevailing etiquette was to build pages that wouldn’t require the viewer to scroll. Now, I’m not too dumb to realize that the proliferation of touch-screen technology has changed the paradigm with respect to scrolling, but still; it feels to me like every web site is made up of a single, bloody huge vertical stack of tricky shit that moves in gimmicky ways as I scroll down, and down, waiting to get to something I want. But over and over it seems these layouts actually show and say very little, and are a woefully weak substitute for the stout navigation that was expected of web pages back when scrolling was considered an inconvenience. I may truly hate this design trend.
So with my old-guy rant out of the way, my point might be that you don’t have to worry about cuing my scroll. Everyone expects, and is expected, to scroll, and we all know it.